Pronunciation · consonant
The /z/ sound — z as in zoo
In short
/z/ is a voiced alveolar fricative — the consonant you hear in zoo, music, plans. It is voiced: your vocal cords vibrate while you make it. Below: exactly how to position your mouth, audio you can copy, the mistakes learners actually make, and drills to fix them.
How to pronounce /z/
- 1Same position as /s/ — tongue near the ridge.
- 2Switch your voice on: a buzzing bee sound.
- 3Crucially, most plural s and verb s endings are /z/: dogs, plays, becomes.
Sounds like: a buzzing bee — 'zzz'
/z/ in words — with audio
Listen, then copy. The slow (turtle) version exaggerates the mouth movement.
- zoo/zuː/ · sound is initial
- music/ˈmjuːzɪk/ · sound is medial
- plans/plænz/ · sound is final
- busy/ˈbɪzi/ · sound is medial
- because/bɪˈkɒz/ · sound is final
The mistake almost everyone makes
Devoicing it to /s/ — 'eyes' becomes 'ice', 'plays' becomes 'place'. Since /z/ carries plurals and third-person verbs, this error blurs grammar as well as sounds.
Who struggles with this sound:
- Spanish speakers — no /z/ in Spanish — 'eyes' devoices to 'ice', plural endings disappear
- Mandarin speakers — final consonants drop or gain a vowel — 'five' becomes 'fi' and plural/past endings vanish
- Bengali speakers — /z/ becomes /dʒ/ — 'zoo' → 'joo', 'lazy' → 'lajy'
- Vietnamese speakers — final /z/ deleted or devoiced — 'plays', 'goes' lose their endings
- Thai speakers — /z/ devoices to /s/ everywhere — 'zoo' → 'sue'
- Korean speakers — /z/ becomes /dʒ/ — 'zoo' → 'joo', 'amazing' → 'amajing'
Spellings of /z/
These letter patterns commonly spell /z/: z zz s se. English spelling is unreliable — trust the IPA, not the letters.
Don't confuse it with…
Minimal pairs isolate the exact contrast — the fastest way to train both your ear and your mouth.
Keep exploring
Frequently asked questions
How do you pronounce the /z/ sound?
Same position as /s/ — tongue near the ridge. Switch your voice on: a buzzing bee sound. Crucially, most plural s and verb s endings are /z/: dogs, plays, becomes.
What is the most common mistake with /z/?
Devoicing it to /s/ — 'eyes' becomes 'ice', 'plays' becomes 'place'. Since /z/ carries plurals and third-person verbs, this error blurs grammar as well as sounds.
Which spellings make the /z/ sound?
Common spellings include “z”, “zz”, “s”, “se” — as in zoo /zuː/, music /ˈmjuːzɪk/, plans /plænz/.
Does /z/ matter for IELTS?
Yes — this is a high-priority sound. Errors here frequently change one word into another, which examiners hear as reduced clarity (the exact Band 6 wording is “mispronunciation … reduces clarity at times”).
Next step
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